Gumming-machine.



A. P. WARD & I. S. RUSSELL.

GUMMING MACHINE.

APPLICATION FILED MAY 12, 1911.

1,042,298. Patented ont. 22, 1.91.2.

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#arianna r. Waan am) ravine s. RUSSELL, or SPRINGFIELD, MASSACHUSETTS.

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Speccaton of Letters Patent.

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Application inea Mayia, -1911. serial No. 626,763.

Spring-field, in the .county of Hampden and vState-ot Massachusetts, have invented cer-y tain new and useful Improvements in Gumming-Machines, orP which the ollowing is al Jfull, clear, and exact description.

gujtnming, at one time, a bunch or plurality of narrow l bands suchas used around bunches of envelops. A

Thel principal object of the invention is to provide a simple and inexpensive machine Which is half-automatic in character and as hereinafter described.

which includes in combination With a gum delivering roll, Which has a constant rotary otion on a ixed aXis, a pressure roll vwhich s'normallyswung With its axis inclined to [the axis'of the gum delivering roll and out ,of Contact With the latter so as not to become ,j covered With gum when no bands -are being 'passedthrough and between the pair of rollers, there being means by which /to force the pressure ro-ll manually down onto 'the bands, and'so that the latter, -Will be ypressed against thev delivering roll in order that the end portions thereof may, as desired, receive the adhesive thereon.

Further objects of the invention are attained in and by the parts and mechanisms -n the drawings z-Figure l is a plan vieiv of the machine. Fig. 2 is an end elevation. Fig. 3 is a central, vertical cross sectional view on line 8-3, Fig. 1. Fig. 4t is a'pa-rtial horizontal sectional view on line L -4, Fig. 3. Fig. 5 is a vievv showing the bands to be gummed, in thleir endwise overlapped re lations I, j

j inthe drawings, A represents the gum box, B the gum -supply roll partly "`submerged in the gum boX, C the gumv delivering roll in constant peripheral contact with the supply roll, and E the pressure roll. lt is to be particularly noted that the pres- ,sure'roll is normally swung to an upwardly inclined position 'out of Contact With the gum delivering roll so as not to become covered with gum when no bands are going through.

rlhe pressure roll. E 'is carried on the long member a Which'is right 'angularly turned from the portion 7J, and which long rod like member ranges in a plane parallel the rihis invention relates'to'. a machine foraxis of the gum delivering roll C; the portion is ulcrumed in the brackets d CZ therefor, While the return bent portion j' constitutes .a lever handle by which to torce the pressure roll manually' down onto the bands, represented. at an, against the reaction of the circling the rod tivhich is connected to the journal brackets l cl, has one extremity thereof in engagement under the member b While its other engages the return bent handle extension so that this spring, arranged as shown and described, or arranged in any other manner which may be manifestly desirable, is effective to cause a rocking ot the portion Zi in its journal box so as to throw the pressure roll 'carried by the member a to an elevated position, as indicated by the dotted lines E in FigsQ and 3, the length of the roll being angular to the axis of the roll C.

lThe operative usually Works With about five of the narrow' envelop bands which are ,fanned out as represented in the drawings", that Iis the ends are made to slightly 'overlap so that at one end of the Several bands the gum may plied therein preparatory around bunches of., envelops, l

While the roll is in its upwardly swung, normal position, the bands are brought onto the distributing roll ivit-h narrow rear end portions against suoli rolls and about as represented in Fig. 3, and then by the hand lever portion f the machine is so manually operated that the V'bands are pressed While forwardly running toward the operator 'who is holding them bythe then downswung roller E,-it being understood that by suitable driving means the rolls B and C are constantly running in the direction o: the arrows.

be apiniultaneously apto using them 'mln' conjunction with the gum supplying roll B is a doctor or Scraper G. This doctor is made in the form of a blade held by screws z' on a flange e therefor torrned on the inner side'of the gum box. A ylhe screwl j which is tapped through the Wall of the gum box engages against the lug 7c formed at and depending from the underside of the obliquely arranged 'doctor or scraper blade While the pair of screws m m have screw kthreading engagements through -the lugs o o also formed as projections on the under side of the blade and so that by the manipulation ofthe screws the blade which is understood as being only semi-rigid may be forced or sprung to its most efficient edgewise relation to the periphery of the gum supply roll.

'If the blade is in too close or hard pressure to the roll, the screws m m maybe turned so as to ease od the blade, its adjustment being maintained by the properly set up screw y'. i

The gum supplying and gum delivering rolls B and C have for their concurrent rotations, in the present instance, means as follows On the arbor of the gum supplying roll B is a gear wheel t, and a driving pulley s; and on the arbor of the gum delivering roll C is a gear wheel u which is in constant mesh with the pulley driven gear Wheel 15,' and the delivering roll C may be bodily adjusted for suitable pressure bearing in relation to the supply roll B by the`well known expedient of the adjusting screws 1i o which are operative on the boxes w in which the journals of the delivery roll are carried.

lVe claim:-

In a gumming mechanism, in combination, a gum box provided with a rotatable gum delivering roll, and said box having journal brackets at an upper portion thereof, a rod like part having an intermediate portion thereof constituting a member journaled for a rocking movement in said journal brackets, having one extremity thereof extending at right angles to said journaled member and in a plane parallel With the axis of the gum delivering roll and having a pressure roll journaled thereon, said journaled member having a return bent oppositey extremity terminating in a handle member whereby the pressure roll is normally swung to a position away from the periphery of the gum delivering roll.

Signed by us at Springfield, Mass., in presence of two subscribing Witnesses.

ALBERT P. VARD. IRVING S. RUSSELL.

Witnesses G. R. DmscoLL, 1WM. S. BELLows. 

